I can't say...
我说不准······

用法透视
当对某件事情不太有把握的时候，"I can't say"能表达你的这种不确定性，意思是"我说不准......"。

支持范例
1. I can't say for certain.
我说不准。
2. I can't say who did the best.
我说不准谁干得最好。
3. I can't say with any certainty that eating less can be a cure for obesity.
我不能断言节食能治疗肥胖症。

会话记忆
A: Who do you think will win the championship?
你认为谁能赢得冠军？
B: I really can't say. Both teams this year seem really good.
我说不好。今年两个队看来都不错。
A: There's a game on tonight. You want to watch it with me?
今晚有场比赛，你想和我一起看吗？
B: That sounds great!
好主意！